SULEIMENOV, Z. On the existence of a conditionally periodic solution of one quasilinear differential system in the critical case. Journal of Mathematics, Mechanics and Computer Science, [S. l.], v. 100, n. 4, p. 8–17, 2019. DOI: 10.26577/JMMCS-2018-4-553. Disponível em: https://bm.kaznu.kz/index.php/kaznu/article/view/553. Acesso em: 24 nov. 2024.